• Worked in an SCRUM and also participated in daily Scrum meetings, backlog gromming, retrospective in 14day sprint.• Sound knowledge in migration of systems, upgraded many projects from 1.7 to 1.8 java versions as well as migrating applications from application servers.• Developed use case diagrams, class diagrams, database tables, and provided mapping between relational database tables and object-oriented java objects using Hibernate.• Created various Stored Procedure, SQL Queries and Triggers required in the modules for the application.• Extensively worked on KAFKA streams on high volume transactions and consumed the messages from various kafka topics and returned to the DB.• Designed and developed various modules using Java, JSP/Servlets, XML, and MVC.• Developed various components using Bounce framework which is customized Spring framework.• Implemented J2EE standards, MVC architecture using Spring Framework.• Developed the project using industry standard design patterns like Singleton, Business Delegate Factory Pattern for better maintenance of code and re-usability.• Involved in implementation of Data Access, Service and Presentation Layers and intensively worked on Spring DAO Layer to access and perform CRUD operations on data.• Used Soap UI for web services testing. Developed unit test cases using Junit framework for testing accuracy of code and logging with SLF4j and Log4j.• Created branches and managed the source code for various applications in GITHUB.• Extensively worked on JSON for data transfer between different hardware components through HTTP request-response model.• Actively participated with fellow front end developers and attained some knowelege on React JS.• Configured Data source using JNDI data pooling.• Responsible for building the application EAR, WAR and JAR files for different environments using ANT script. Written JUNIT test cases for performing unit testing.

• Worked as per Agile methodology to meet customer expectation, timelines with quality deliverable.• Used the JavaScript libraries j Query, AJAX to talk to the Restful API and display the J SON format data for the end user.• Used Two-way data binding features of Angular JS to implement Data binding to bind various server controls to the data from database. • Designed and implemented AJAX server calls to dynamically retrieve customer information. • Achieved synchronization of multiple threads through Multi threading, Exception Handling and optimized time complexity by using built-in data structures in Collections. • Used Java 8 Lambdas to make anonymous inline function calls and used Streams to work effectively with Collection objects.• Implemented service methods and SQL queries, PL/SQL to interact with the Oracle DBMS. • Designed and implemented MongoDB based database and created REST enabled Web Services on Jersey framework. Designed and developed RESTful Services to retrieving configuration JSON documents related to customer.• Worked on REST APIs, and Elastic Search to efficiently handle and searching JSON data. • Designed and developed XML validation functionality and store XML document in database. • Used JIRA tool for Issue/bug tracking, monitoring of work assignment in the system. • Log4J was used to monitor the error logs and used GIT as version control tool. • Followed Maven build life cycle to build the application and deployed into WebSphere application server.• Performed parameterization of the automated test scripts in Selenium to check how the application performs against multiple sets of data. • Developed test cases and performed unit testing using Junit.• Worked on creating documents in Mongo database.• Experience with creating script for data modeling and data import and export. Extensive experience in deploying, managing and developing MongoDB clusters. Experience in creating JavaScript for using DML operation with MongoDB.

• Designed user interfaces, object model, application server logic and schema by analyzing requirements.• Used J2EE patterns for designing applications.• Designed UI pages using HTML, DHTML, JavaScript, JQUERY, JSP and Struts tag libraries.• Monitored the performance of application using JProbe, also coded Struts Action Classes and Model Classes.• Used Struts Validation framework for client/server validations.• Extensively used design patterns like Singleton, Factory, Abstract Factory etc.• JMS is used for exchanging the information like Author publication status report between the author and company.• Used EJB Session beans and entity beans to develop business services and the persistence.• Followed coding guidelines while implementing the code.• Extensively involved in Unit testing and coordinated with the testing team and fixing Bugs at various stages of the application development.• Develop Message Driven Beans (MDB) & involved in building and accessing a Web Services using SOAP over JMS.• Developing a mechanism for sending and receiving SOAP messages over JMS by MQ Series Engine• Developed Web Services using Apache AXIS2 tool Framework.• Generated WSDL files using AXIS2 tool.• Implemented Web Services using SOAP protocol, UDDI, WSDL and Service oriented Architecture (SOA) Concept.• Ran check styles, find bugs and configured EMMA tool for test coverage.

• Responsible for Requirements capturing & Preparing Software Requirements Specification.• Responsible for designing, Implementing and mentoring the junior developers.• UML Modeling using Rational Rose tool.• Primarily involved in re-design and coding of offline processes which are standalone java programs running to generate various reports asynchronously and send mail to the users.• Worked on Maven software tool for Java project management and build automation.• Refractor java code to make it more maintainable.• REST web services have been developed using JSON, Spring 4.0, Hibernate and Oracle 11g on Apache Tomcat.• Writing SQL to work with Tableau Dashboards and rectifying the errors.• Involved in the redesign and development of the web-based application into a multi-tiered application.• Identifying the software defects and reported them in JIRA.• Front-end development using OOP JavaScript, Foundation, Bootstrap, and MVC frameworks.• Created complex Stored Procedures, Triggers, Functions (UDF), Indexes, Tables, Views and other T-SQL code and SQL joins for applications following SQL code standards.• Implemented Hibernate as ORM framework to connect to the database and do database operations using core Java objects such as classes, collections API etc.• Responsible for development of REST web services and testing them using REST Client and leveraged SOAP UI to test the SOAP calls using WSDLs• Involved in rewriting middle-tier on WebLogic application server.• Developed the administrative UI using Angular JS• Generated Stored Procedures using PL/SQL language.• Used XSLT for transforming the XML documents into HTML documents.• Used various design patterns like facade pattern, service delegate, factory pattern, singleton pattern, DAO etc.• Involve in support of the application which involved defect fixing and minor enhancements.